ADUs are allowed in CarbondaleTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Carbondale, IL
Is your property eligible for an ADU?
# of Properties
819
Owner-occupied
41%
Zoning districts
26
Avg Home Value
$180,357
Median Lot Size
0.50 acres
Avg Income
$41,676
Residential Types:
819 housing units
Single Family
2%
Other
98%
Zoning Districts:
8,001 parcels · 26 districts
R-1-5
22%(1,765)
R-1-8
22%(1,725)
R-1-15
9%(682)
R-3
8%(679)
Other
39%(3,150)
ADU Rules
What can you build in Carbondale, IL?
Carbondale, IL follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.
Eligibility
- –Internal / Attached ADU: By Right
- –Detached ADU: Conditional Use Permit
Detached ADU Size Limits
- –Maximum 800 sq ft per detached accessory dwelling in R-1, R-2, R-3, and PUD; no separate size limit in LI and GI.
Rental Restrictions
- –Vacation rentals limited to 24–29 days per renter; long-term rentals: no restriction specified
What's allowed on your lot?
These are the municipality-wide rules. What's allowed on a specific property also depends on state laws, setbacks, floor area ratio, lot coverage, environmental constraints, topography, and other property-specific factors. Search your address on FutureLot to see what's allowed on your property.
Check my propertyHow can we help you?
Get matched with trusted local builders
Understand what's allowed on your property
Learn the key rules and size limits for ADUs